VYPR
Medium severity6.5OSV Advisory· Published Apr 1, 2021· Updated Jun 17, 2026

CVE-2021-20291

CVE-2021-20291

Description

A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using tar. If one of those layers is not a valid tar archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/containers/storageGo
< 1.28.11.28.1

Affected products

51

Patches

Vulnerability mechanics

References

16

News mentions

0

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